Oil-burner.



Wt MELAS.

0H, BURNER,

.19mm-@Tm man mm 1o. 1913.

Patente 5 S H E ETS- SHEE 2,

@s www, H

W. WELS,

GEL BURNER.

APPLICATION man ma mi 'm `To all whom it may concern lPatriintr OFFICE.

WILLIAM nELAs, or rnxnananrmmrnnnstvama, AssIeNon or omi-HALF rro DAVID'TOWNSEND, OF PHILADELPA, .PENNSYLVANJA.

cin-BURNER.

Be it known'tbat I, 'VILLIAM Mams,- of Philadelphia, in the State of Pennsylvania,

-have invented a certain new and useful Imf' provement in OilfB'urners, .whereof the following is a specification, reference being had to the accompanying drawings.

My invention relates to burners of the class wherein liquid hydrocarbon. may be mixed with a blast of another fluid servingI as a diluent, for instanceair, steam, oxygen or other gas, so as tobedischarged, atomlzed and burned in combustible mixture therewith.

It is the object of my invention to govern the amount -of oil which is discharged through the burnerrby automaticallyoperative means within `the burner; to..V autof matically and vafiably' llimit the. -amount'rof oil discharged thnough the burner by and in accordance with the pressureof-the diluent fluid; to automatically stop the "discharge of oil, by means within'the burner, ifand when the diluent fluidv pressure fallsbelow a certain limit for whichthe. burner is set;

to clean the discharge orifice' of theburner by relative movement of members of the.

burner, and automatically restore them to their original relative position, by means within the burner; to simultaneouslyqkclean any number of burners, connectedto the;v

same line, from a'ny d1stance,-'without manipulating the burners individuallyglto clean the nozzle orifice of each burner, 1u-

dividually, independently of, vand Lwithout 'interfering with the operation of, the others;

tov adjustably determine the amount of 'oil lemitted from one or. any number of burners,

without interferingwith the oilY pressure,

andV without manipulating 'the' burners; to adjustably vary the amount ofI 'oilemittedf from the nozzleof any burner, independent, ly of and without disturbingthe others: tot` change the angle of 'spray,emitted"bythe burners, -withou't changing*l the latter; to" adjustably vary theamount yof 'aire emitted at a given pressure from the burner, without changing the shape or position ofthe .dis-- charge nozzle of the burner;'by increasingr or decreasing the area of the-diluent Huid passage in the burner; to make the'adj'ust# ments of the oil and diluent fluid., discharge'l capacities of each burner independent .of

each other; and to effect double atomizationof the oil, underall of the conditions Specification of Letters Patent.

PatentedvJan. 18, 1916.

Application filed March 10, 1913. Serial No.'753,400.

of adjustmentv of which the burneris susceptible.

' As hereinafter described lmy invention in-I cludes the combination with a burner casing havmg an ax1al. tubular member, with an oil chamber in said member and an air cham-l ber surrounding saldv member, an 011 inlet vcommunieating `with' said oil chamber and an air inlet communicating with said air chamber; of an voil'nozzle at the inner end of said oil chamber, having an internal valve seat; an axiallyadjustable air nozzle at the-inner Yend of said: air chamber; a nozzie-.axially adjustable in said air chamber between said oil nozzle and air nozzle, having. ShanksV extending` axially in said air chamberwupon `opposite sides of said oil chamber, with a left;v hand internal screw i thread' at their outer ends; an annular nut engagmg said nozzle screw thread, mounted torotate, without axial movement, on said Y member,iand vbavinga crown clutch at its n outer end; a valve ttedto said seat, having a tip fitted to reciprocate in and clean said oil nozzle, and a stem: mounted to vaxially reciprocate in said member-and having a lpiston sleeve rigidly connected with its outer -end,=mounted to axiallyl reciprocate in said and` having an internal right hand SCIeWtl-iread at' its inner end; anannular nut .engaged mount'ed to. reciprocate on said member and 1 havinga crown clutch at its inner end, adapted, to `engage the nozzle nut clutch aforesaid;r means preventing rotation of saidpiston nut on said member ;'and a springl encircling'said member, abutting against a collar at the outer end thereof and against said piston nut, tendingto shift said piston andfvalv'e inward,jto close the' latter in opposito'nfto i'luidpressure in said air chamber. The angle, of sprayis variable in accordance-{with-,the axial 'position of said -fnozzlely All. ofthe-burners may be simultaneously "cleaned lby vshutting o lthe air pressure; and leach-:burner may be indepeniently. cleaned byj'manually pushing inwar j its pistonhcarrying its valve with the cleaninggtip; said parts .being vautomatically returned-to their original "position by in; ternai'ai'r pressure onvsaid piston.

,My invention includes the ,variousv novel features of construction `and arrangement hereinafterA more denitely specified.

, inthe drawings: Figure I is an elevation with said piston screw thread,-y

-IX is a longitudinal sectional View of of a burner embodying my impro\`iement," connection with a spherical'bear'ing carried:` by a bracket arranged to be swung to and from operative position 'on a furnacewall.- Fig. I^ is a transverse sectionaluvliew fof.r burner taken on the line A-A in Figs. 1 and II. Fig. Il is a longitudinal sectional view of said burner. Fig. III is a fragmentary vertical sectional view, similar to; Fig.. 1I,"but showing the oil valve in yclosed position. Fig. IV is a vertical sectional view, takei'on'thei line IV, IV in Figll. Fig. Y is a vertioal sectional view, taken 'on' the line VgyV in Fig. l1, but. showing said oil valve in` end elevation. Fig. VVI 'is a longitudinal tional view, similar` to Fig'. IL butA showing a modified form of niyjinvention.4 VII is a fragmentary ,stionaiviewv similar `to' Fig. VI but s hmving'ftlieioi'l valve 'inlopen/ position. Fig. VIIIfis an 'outer-edv'i'eaf* of the 'burner easing shown showing the stuffing boxv and means` for*` locking the Asame in adjusted .w modified forni of .my invenltion.'v YEig, X

an outer faceview of the Ibracket''sup't 'shown in Figs. -Ifand 'IX'.

right handend viewo'f said bracket-support: Referring tofthe formot my' 'jinventiorrL shown in EigsfI to V inclusive; "the burnerv furthe' ainlinletandfthe" oil vinle' t,"'respeta# -tively communicatingI with theylindricval l;

f. the vlongitudinal axisof said casingSaad`r` Achamber 6 extends in the V ficelO at the inner e'nd of. Qtlie orii'cl Valve 'f "bex-.14 I seat 11. Saidcoreylis lsereifthreaded at'ally 1 reciprocate in sai head 25 l' air chamber'5 and-fthe eylindrical'foi'l chant ber 6'; said -cliambers' being fconcentrlwith f unitary relation ',fwith :said i'easing- 'il' screw threaded at'its inner end.,8 torec'eive 1.' the oil nozzle?.having"thefoylindrical Orl# A its outer end 'to receive thel core jtube'f' 13 am thereof and 'forming therelwithlthe tubular l memberl 'of ther valve casing above lco'r'itexn.

platedl yThe valve 15 which isittedto'; said seat 11 and has the cylindrical fitted to said orifice 10 is sup'p'ojtediileonceitriev relation with said oiLchaniilr .by .the ribs f thread t the pistoia, Q1 v vhlv s p'rvented-from out ward displacement'thereon 'by 'the "fla-nge' hand n,screw thread ,34 at its innerend adjustabiyngagiig 'the' annular lfpistbaaut which is -iitted 'for axial recipro'cati'bn' on K said core tube 13but vprevented from turn- 'niit '35,' extendigin vthe keyajayf core t ube Said nut 35 serves 'asfanladjust-l able abutment" for the inner endaof' the spring- `{1 Q-wliich encicles said'core tube-13 and bears 'at itsouter end against the 'stationary*abutment collar 41==fwrhich has the sere'wthread 42 rigidly enga 'ng .said core tubef'l.' Said spring 40 ten( nut lnufiistori 29,'fand -thefparts connected therewith, including.I thev 'valve 15, rtoward.

i; girasoli-bytheikeyf 'amenities-by 'Snag fiusaid sv'tofshift Said .f 'i "the seatbffthe latter, 'againstathe'pressuregh X 2of Jair; or other d-il\1nt`fiuid, ili said cham,-

beit 5lV Said piston29;:being5provided with 'I' the Apacking 515 and havingthe'stuiling, boi;y -46 with' 'the'v sc'iefw thread AJ47 ien aging said lixnitedjyby thev flfangeAS on said, stufling box aiid-ftluifs axially adjusted with respect ito that the positiomo'f'fsaid nut' is 'variablygl determined bythepressureof saidspr-Ling4 40; upon'ftheouter. vend thereof land the, pres- "4 '851 burner casing 1,`.has ;its.outwiar moveinelntl-.;A.`r

opposed to fthe.' shoulder. 49 on l l l Said stuiing.boli 16 isfknurledt l i Vis as vindica'tedvatf-5.1 sothatf it mayberotated 29;'f5and the 'valve '15 whichi is rigidly, con'- "18M*hermansaxially.mataba s .o' l

that particularipessure existsgin saidcham'- In other worlds,' .said =valve y15, is

-adjustable with respect toVA its seat ,.1'1' so a's'fto: fdeterrninethe area of the passagewayl s a'utornatieally Acontrolled by the fluid ,pressure-nsaidfchamber 5, so that-as saidjpressure diminishes saidyalve 15 iscshiftedlto-t 'wai-'d [its 'seat rllbyesaidQSpl'fg- 4Q, an closed upon its seat .when` said 'spring is lno f longervrv counterbalancedby, ,pressure in Lsaid cliaifnber; 5; The discharge nozzle'53is aiii-A fortheoilfto theloil discharge orificer` 1Q, but I =al|ly adjustableat the inner end off said air d.; I i I chamber- 5f thread 54 engaging theburne'r easing'land having the vlodi( nut against Lthe-inner4 end .of saidLcasingv; said nozzle' 53 and nut, 55;,-being k'nui'ledh Lto fabeing provided with, the

55 adapted a). bind', '12.101 F f oilitate their' rotationfbyhand.- lt may be i observed thatfaxialeadjustinent o ffvsaid disr iri'nr tapering surface 56' of said nozzlel and as close as may be to the outer surface of th'e oil nozzle 9. Said nozzle 58 has, as part thereof, the sectoral Shanks 60 extending axially in said air chamber 5 upon opposite sides of saidvoil chamber'G, with a left hand internal screw thread 61 at their outer ends engaging the annular nozzle nut 63 which Y is mounted to rotate, without-axial movement, on saidcore member 13; axial more` ment of said nut 63 being prevented by the iange 64 on l'said core member. Said nozzle nut 63 has the crown clutch 66 at its outer end, including a circular series ctv-shaped teeth, opposed to a similar series of teeth, forming a crown. clutch 67 at the inner end of the piston 29.' It is to. be understood thatsaid'piston'Zi) may be manually thrust -inward.against theiluid pressure in said chamber 5, to engage the crown clutch 67 on said piston with the crown clutch 66 on said nozzle nut"6 3so that, by rotation of Said piston 29, said nut 63 may be rotated to axially shift the nozzle 58 in either direc'- tioln Said nozzle 58 is convenientlyk de tachably connected with its Shanks 60 by the 'screw' thread 69 and-incloses' they inner' air chamber'TO which is in communication with the -outer air chamber 5 through the circuk lar series of openings 71; so that the oil discharged through the cylindricaloriice 10 of the oil nozzle 9 is doubly atomized, first by the blast of air issuing from the inner chamber 70 between said oil,nozzley 9 and the nozzle 58, and second by the blast of air y issuing from :the outer chamber between said nozzle 58 and the discharge nozzle 53; both of said blasts being conical and at different angles determined by theA walls be tween which they issue. As above noted the atomized mixture, as discharged through said nozzle 53, forms a conical spray the angle of which is determined by the relative axial position of said nozzle 58; said angle of spray being increased as the volume of air issuing betweensaid nozzle and nozzle 58 is increased, by the outward movement of said nozzle'S, 'to the left in Fig. Il,

and being diminished as the volume of air issuing between said nozzlel 58|and the oil vnozzle '9 is increased by the movement of said nozzle `53 in the oppositel direction.

-It may be observed that if the amount of oil being emitted throughV the oil nozzle 9 be increased, by withdrawing the valy'e 15 from its seat 11, more air is required for 'atomization and it is also desirable -to increase tha-,angle of spray, and to always Therefore, the screw thread 34 between the piston 29 and the piston nut 35 is inclined in the opposite direction to the screw thread 61 between the nozzle Shanks 60 and the nozzle nut 63; said ,screw thread 34 being right'hand and said screw thread 61 being left hand so that when the crown clutches 66 and 67 are engaged and rotated, by manipulation of the piston 29, both the valve l5 and thenozzle 58 will lbe shifted 'simulta-r neously in the same direction, to vary the angle of spray in accordance with the amount of oil being emitted. However, it is to be understood that it is not essential thatv said screw threads 34 and 6l be respectivelyY right hand and left hand, if they are respectively oppositely inclined; but are preferably made as described so that clockwise .rotation of said piston 29 corresponds with advance movement of said valve 15 toward its seat 1l. understoodthat by pushing the piston 29 inward and turning it,l with the crowjn clutches 66 and 6,7 engaged, the amount of oil and air being emitted in a unit of time' is changed, but the ratio'of air and oil re- Therefore, it is to be oil which passes in unit time through a unit area of a plane at right angles to the burner axis also remains constant. By simply turning said pistonV 29, while said clutches remain "disengaged, the amount of oil being emitted in unit time is changed, and the ratio of oil and air is cl1anged';such turning movement effecting an axial movement of the `.valve 15 with respect to its seat, Withoutl axial movement of the nozzle 58 which k.determines the angle of spray as above described. By pushing said piston 29 inward, without .turningy it, until the cylindrical cleaner 'pl on the valve 15 is thrust through the oil discharge orifice 10,' and then releasing said` piston 29,' said oil nozzle orifice 10 is cleaned and the parts automatically restored to precisely the same po? sition as before the cleaning movement began. The amount of air that may be emitted through the burner at a given pressure maybe variably determined by axially adjusting the discharge nozzle 53, said amount being diminished said nozzle is .shifted inwardly and-vice versa. Variation in the air pressurel automatically effects corresponding variations in the amount of oil discharged in unit time, but does not affect the ratio of oil and air nor the spray angle. Shutting oft' the air automatically effects the closure of the valve 15, and consequently shuts off 'thea-oil.' Therefore, groups of burners, connected to the 'same air supply line, may be clanedsimultaneously,"withsimp out manipulation of any parto'f any burner, f

yfsh'utting offA thev air and,v of

course, this may be effected at a'point distant from the' burners.v` 'Moreoven' 'such groupsfof burners maybe simultaneously z the burners 41n groupsl does not'change the@ started'f'orirlegulatedat such distant point, without ,interfering' with the .burners -indi-1 v-idually, by I nerel'yl controlling the air'p'ressure; and

ratio'of oill and air in any, burner '1n such a group.' However, each burner isV capable of independent/adjustment and regulation a's veniently relation with 4'a vfli'r'nacel' Fig. '1,' IA yfind it convenient to mount1 said casing lwith s advscrew thread 74 in con- 'nection `with vv,thefspherical bearing 7 fwhiclr socket nut Said tube-76 is detachably* connected by the` screw thread 79fwi`ththef swing frame 8O hingedly `connected vby 'the pintle 81'on the bracket'82'which isy secured v'to vthe `wallfby the'bolts 84', so" that 's'aid'j socket ltilbe' is' inj axial alinement with the fuel inlet 85' insaid furnace wall. As" shown' in Figs;v Xand XI. said bracket 82 hasfthe' latch 86 pivotallyconnected therewithI by thestud bolt 87 so as'to detachably engage,

ALthe burner'casi'ng 'l may be. normally 'leld in rigid relation with thel furnace Kwall i 8 3 but, whensaid vlatclris raised, s'aidburner may shutten 90 is mounted to reciprocate to thel` extent limited "by its, outwardly lturn e' d` fianges 9'1.A Said' shutterj'ha's the fnelnper ,ture 92y which, in the poiitionfshown in: Fig, I is presented in concentric 'relation with the axis of the socketstube 76 andthe 85 in said furnace wall. Althoughv Il'prefer to4 embody my linve tion in the complex` form above described?) :vided with the air inlet 97. l m`ember-92 has in unitary cinmection'there with the' tubular member 98 inclosing the oil' ,such control and adjustment of valvewithout disturbing Vthe adjustment of the burner "may be made without the automatic opening and closing means, including the pistonand spring, above described; for

instance, as shown 1n Figs. VI to VIYIIIinj elusive. In said figures the burner casing 1s Y conveniently formed of `two members 92 and 93detachably connected by che screw thread 94; saidfmember 92 being provided-with the oil inlet 96 and said member 93 being pro- Said casing chamber 99 andvhiving at theinner endv thereof the oil n0zzle-100 detachably connected therewith by the screw thread 101;

-said nozzle having theedischarge orifice 102 and the internal conical valve seat 103. vThe valve 1v'05'which is Yfitted to' said seat 103 andv r y has the cylindrical tip 106 fitted Lto said orifA fice 102 is.`supported 1n concentric relation withsaid oilchamber 99 by theA ribs 10S on the valve' stem 109 which is fitted to 'r ecipro n the valve 111 fitted to the-seat 112, in said "114 which is adjustable by' the sleevell,

" casin'g'member V92.` Said sleevell has two -catein saidmember 98 and provided with f "casing-membe1-*92'toshut ofi' the flow of oil lthrough said'member 98. Said stem 109 ex "tends through the bushing 113 in said casing 1 lmem-ber 92 and isp'rovided with the packing .95 having' the screw thread 116 engagingsaid peripheral-recesses 118, shown in Fig. VIII,

either offwhichv may be turned into registry with one of' the series of complemenetary re cesses 119' insaid casing member.. 92 to receive the end of thes ring 121-fwhichlocks said sleeye-'f1'15 `in a justed position, thus preventing its accidentalfrotation. 4Said s sleeve 1s provided with suchlockingmeans by fits hoolgend, the lug 88 on said swlng' frar,80; the "arrangement bein-g such that-V so that it--msry7 preventaccidental rotation of the v'alve stem 109 which reciprocates valve stem 109 isthus'y prevented from rotating 'in orderv that it Vmay beaxi'ally shifted. -by 'rotationof the thimble 12'Lwliich iszjourw naled' in theicap 128 vand :provided with the. screw thread '129 engaging the.. left hand screw threadf130 on thefouterend' o= said thread132-bywhichI it is normally rigidly position sh'ofwnf VI. However, saidv Aconnected'withfthecaaiing member 92 in the fuelrlnlet 85.V However,.1t1s to be under-l stood that' said shutter may be'slid, to the cap isknurl'ed asfindi'c'ated a-t 133 so thatit may be' manuallyy removed to Apermit adjustment of the packing'lfliibyi rotation v'of said "ej, sleeve v115 which is rkniuled at 134 to facili.-

ancev 'with' my.inyention,`to effect the clean" ying efV the oil nozzlev by reciprocation of'v the" v i* V l n atateits manipulation. vg-Saidgspring l21'norburner constructed and ar' anged, v1n accord-3';4 mfallypresse's said thimble 127 outward,with

itsshoulder`135 'against'the shoulder 136 in.

member 168 being providedjwith thrust inward against the pressure of said spring 121 to reciprocate said valve stern 109 when the latter is axially shifted outward with the valve 105 in o en position, for instance, as shown in Fig; VII, so that h manually pressing inward said thimble-12 the cylindrical tip 106 on the valve 105 is thrust Vthrough the orifice 102 in the oilnozzle 100 to' clean said-orifice, and the partey are automatically restored, bythe spring'v 121,.` to the axial posi-tion to which they have' been adjusted by rotation of Said thimbl,..

- said oil chamber 1.69'by the ribs 178 on the Valve stein 179 which is fitted to reciprocate in said tubular member`168 and provided with the valve 181 fitted -to the seat 184A in said casing member 162 to shut ofi vthe iiow -oioil through said tubular member 168. Said stem 179 extends through the stufing b ox 182 inrsaid casing' member-162 and is provided with the pac ing 183 which is adi ustable by the sleeve 185 yhavingthe screw f thread 186 engagingfsaidstuiiing box 182.l

Said valve stemy 17 9-may be conveniently ro- In other words, the valve 105f'may be axiall'y" tat-ed byits' exterior handle 188, and has the adjusted with respect to 4itss'z'eat 103 inthe oil nozzle 100 by rotation of said 106may be manuallyreclprocated, to the oil nozzlewithout Vdisturbingsuoli ad-` justnient. Said air inlet 97 communicates' with the cylindrical air chamber 138 sur# screw thread- 190 .engaging thev piston 191 `which i's fitted to reciprocate in the cham-- 127, and said valve 105 with its cleaning tipj ber 192 in saidfcasing member 162 and has clean-:the springlQi' thrusting it inward against the Huid pressure in said chamber 192 which is'in communication with said air inlet 167 through the passageway 195 extending in rounding said tubular member l,98 in `thf'e,(`:a.%-llsaid casing' members 162 and 163, and the ing member 98, and the volume of 'air ii'ow-`r ing through said chamber, surroundin` the oil nozzle 100 is variably determinedr axial adjustment of the air nozzle 139 which has the discharge orifice v140,concentric with" i said oil oriice 102,ad the conical internal wall 141 extending yparallel "with the outer y conical face of s'aidfoil nozzle 100. g Sai'dalir nozzle 139 has the'screwthread'lO bywliich it is secured in said casing'memberl, aii'dsl provided with the Wrencli` 'hold by' which it may be convenientlyrotated. "Said air nozzle 139 may be'rigidly secured justed 'position`-by Vthe jam nut v152 whicii bears upon the inner end of said Casin member 93. It-may be'ob'served 'that'said casing member, has4 thescrew. thread E154 scribed so that it may be connectedwith spherical bearing'75gsliown iniFig. I..

Fig. IX shows a simpler form `'ofi'xny invention t wherein the oilv 'nozzle may cleaned by reciprocation of the valVelvithfV out disturbing the adjustment of the burner,

air chamber 197 in said casinmember 163 b surrounding said tubular mem er 168. It isy to be understood that, .during the. operation 'of 'this 'form of :my invention, the axial .position ofthe piston i191 `is variably determined bythe air-or 'otherdiluent `fluid pressure in ,the'burne'r bearing lupon the inner side of .said piston191jin'fopposition tothe rassure fo'thefs'pring 1'94f1'ipon vthe outer'si e thereo,-and that Vthevalve 175 Iis axially adjustl'able'towardand Ilaumy'rom its seat by ro tarym'ovement ofritsstem 179; so that the .yohime of' oil" beingemittedy through said y oil nozzle, I170 may be determined by Vmanual adjustment of said valve but is automatically var/yale Iin" accordance -with and by variai'ngthe 'airrpressure zin said burner y, yway` of said .air inlet 167 as here- .jinhe' contemplated. v,The Volume of air I'being griiittedfin'mixture `with the oil is i variably 'determined byl axial adjustment, of

i; the irnozzleQOO 'which has the screw thread "201:6" 'ng said-casingmember 163, and

ilthe. af-ixaniit"202fbearmgV upon the inner end and the axial position of thevalvecontrol-- offtsidjmpembr.: 'Said air nozzle 200 has ling the volume of loil being emitted is vxiriably automatically determined yhe airpres sure in the burner. 'In said i'gmegthe,burner-:fV casing is conraniently formed otWo-iiie` bers 162 and 163 detachably'ciinne'ctedby` screw thread 164, saidl member 162" provided 'with thev oil inlet y166,'ati

i 172 issupported in concentric relation with aze i 1.72and'fthe conical internal :mnding.."par'allelV with the outer *.saidoilznozzle 1,70 and the amica-amies of' 70flmaybefcleaned by reciproca- A .y Hh walv, the tip 176 oriieje172,"gwit out rotating y vsaidelenients being autonigrticallyrestoredfto their normal oper- 'ntye'gositiong 'b thefluidy pressure lin said chamber 192, w en Vsaid handle 188 is redisturbing the ad-l 1, jetmirtxof'the burner;

l 'foicef205, concentric with r ribs ,207

:airychamber t 19T-,forming emitted' around ysaid oil leased. -Saidi=casing,member 163. has thef 4fia l ...ing a collarat tlireadfl;y and 1571 above described-,so that it.

@7511s shown in-Fig. IX, y

limity myself tothe' prel u @I do not desire t cise details of construction and arrangement herein setfor'tlnas itis 'ob'yious that various moditicationsma l be' made therein `Without departing'from t invention asfdetined in .-I claim?? thenppended claims.r

...lar member-extending the .onteiend thereof, anoil chamber surroundingjsaid `til-I biilar'y member, anloll inlet communicating with oil chamber, and an air inlet l`.commumcati'ng nozzle at the, inner endo Asaid oil'cha'mber,

flhaving an internal conical yalye vseat :an

inner end-of `said airl liairnberfin.l concentric -ally'adjustable in said ,airchamber between ,said oilna'zle anddischnrge no zzl'e, basing sectoral Shanks extending axially' 'm sind airA chamber upon` opposite' l sides of said, oil

chamberwithfa left"liand. internal screw thread at .theirv4 outer ends; an annularnozzle nut in..engageaien'tj, witlisaidscrewfthread, mounted toll'ot'ate, without axial movement, on said tubular member and haymg-a'crown clu ch at its outer. end; a vailye tittedtosadgsea't, having agti 'fitfted' to reciprocatein and clean; saidjoil 'nozzlefalnd l a stem mounted'to axially reciprocate. in saidI f tubular member and" having a 'head at thev outerend thereof a piston rl'gidlyconnected mounted to-.axially reciprocate in'said burnervasing, and having an internal right hand thread .at its inner. end; 1an v`ann'nlarl iston nut engaged with. sad.piston` screw t read,v

mounted. toI recil'ii'ocateion vsaid tubular.

' 5memberand.carryingaerown Aclntth :itits inner end,.aflanted .to' engage the nozzle mit l member,` abuttin A ".feliainlnirgbnti v'the position ofasziidiyalve ywith; respei-ttoA luid-pressurein Saidfpiston .is autonnitically'fshifted ywith 'said Lvalve, relativelyA tofsaid val've. sea tto `vaA ry the volume of oil beingfeniitteil, in 'aueordanee with the.. finidf'press'ure 'in said Aair said seat,^and consequent oilfeinissiom'at any.

given pressure; said valve being automati-vv e y essential features of my screw y .said air chamber-g whereby,

s manually adjustable. to vary" 'callyA closedl by said alane by Ithefluid pressure l ,isnot counterb inL lsaid aiinlialnben 2 jIn an'oil burner", the combination with if tubular lcasing lia'vingan 'axial tubular member withan ilhainber in said tubular "member, an' lair' chamberv surrounding said tubular niiilbe'r, an oillinlet communicating with said' oil hamber, and an air inlet communicating withr said air chamber; ot' an oil nozzle.y at'tlie'ini1er.'end"of said oill chamber, having animer-nal 'valieseat ;l 4an'aially ad- 'us'ta'blfe'discharge nozzle 'at the inner end of 'air "chamber," in concentric relation with so il'noizle` a-nfozzle. axially :adjustable ;in. said air elniinher v between 'said oil nozzle chamber r in saidftubularf. member, gnfwairi and "discharge nozlehaving Shanks extendf ing anria'll'y.' 1n said airchamber upon oppositesides of 'saidvoil chamber, with a left- ,luin'dfinternal scijew thread at their outer ends', an auiiularnozzle nut in engagement ywith said screw thread; A'mounted to rotate, .fwitlioiitmxial movement, on said tubular niei'nher and "having a"c1o\\'ni'clutch at its outerf'end; valve fitted to said seat, having avtinp'iitte'd to. reciprocate, vin and clean said oilfnozzle, and 'a vs` 'tern mounted to axially 'l reciprocate in'said tubular'member and having a piston rigidly connected with its outer .end mounted toaxial'ly reciprocate 1n said .lmrneicasingg and haring an internal. right hnnd' screw" thread at itsinner end: an annular pistonz nut engaged with said piston Srew thread.'mountedlto 'reciprocate on said tubular member'a'nd Ihayig -a crown clutch i.' at its inner end. 'adapted to engage the noz Zle nut clutch aforesaid; means' for prevent- '.1' lar member;a collar at vthe outer end of said :tubularjmember;l spring encircling said tubularinember, abutting `against said colf lar at the outer end thereof and against said ing rotation'of said-piston nut on said tubupiston nut, tending to shift 'said piston and V-walve'inwnrdfto closethe'latter in opposition to 'Huid pressurel in said air chamber; Aw.hereby,isaid pistonis` automatically shifted, with saidwalve," relatively to said valve seat, .to varyfthe volume of oilbeing emitted` in iceordance\\itlr theyiiuid pressure in said chamber, 'but is manually adjustable to thel position of saidvalve with respect t'o-siiidse'at, and consequent oil emission, at ,any given ressure; said valve being-'automatically.A c ose'd by lsaid spring when the 'd i'lilanihir, having'au internal valve seat; an

`latter "is/"not 'counterbalanced by the fluid.

' adjustable in'said air chamber between said(- `oil nozzle and discharge nozzle, having a left hand internal screw thread at its outer axiallyladjustable discharge nozzle atthe` inner end of said air chamber, in concentric relation with sald 011 nozzle; a nozzle axially end; an annular nozzle nut in engagement with said screw thread, mounted to, rotate,

Without axial movement, on said tubular member and having a clutch at its outer end; a valve fitted to said seat, having a tip fitted to reciprocate in the clean said oil nozzle, and a stem mounted to axially reciprocate in said tubular member and hav-- ing a piston rigidly connected with its outer end, mounted to axially reciprocate in said burner casing, and having an internalaight nut clutch aforesaid; means preventing ro-,

tation of said 'piston nut on said tubular member; a collar at the outer endA of 'said tubular member; a springenc'irchng said tubular member, abutting against said col lar at the outer end thereof and against said piston nut, tending to shift said piston `and valve inward, to close the latter in opposition to fluid ressure in said air chamber; whereby, sai piston is automatically shifted, with said valve, relatively to said valve seat, to Vary the volume of loil being emitted, in accordance with the fluid pressure in said air chamber, but is manually adjustable to vary the position of said valve with respect to said seat, and consequent oil emission, at any given pressure; said valve' being automatically closed by said spring when the latter is not counterbalanced'by the fluid pressure in said'air chamber.

4. In anoil burner, the combination with a tubular 1casing having an axial tubular member with an oil chamber'in said tubular member, an air chamber surrounding said tubular men'ibex, an oil inlet communicating with said oil chamber. and an air inlet conilnunicating with said air chamber; of an oil nozzle at the inner end of said oil chamber. having an internal `valve seat: an axially adjustable discharge nozzle at the inner end of said air chamber, in concentric relation with said oil'nozzle; a nozzle axially adjustable in said air chamber between said oillnozz'le. and discharge nozzle, having an internal-screw thread at its outer end; anannular nozzle nut in engagement with said screw thread, mounted to rotate, without axial mo'vement, on said tubular member and having a clutch at its outer end; a valve fitted to said seat, having a stem mounted to axially reciprocate in said tubular member and having a piston connected withits outer end, mounted to axially reciprocate in said burner casing, and having an internal screw ,thread at its inner end, pitched oppositely to the first named screw thread; an annular pistonnut engaged with said piston screw thread, mounted to reciprocate'on said tubular member and having a clutch at its inner end, adapted to engage the nozzle nut clutch aforesaid; means preventing rotationv of said piston nut on said core; a collar at the outer end of said tubular member; a spring encircling said tubular member, abutting against said collar at-the'outer end thereof and against said piston nut, tending to shift said piston and valve inward, to close the latter in? opposition to 'luid pressure in said air chamber; whereby, said piston is automatically shifted, with said valve, relatively to said valve seat, to Vary the volume of o1l being emitted, in accordance with the fluid pressureiin said air chamber, but is manuf ally adjustable to vary the' position of 'said valve with respect to said seat, and consequent oil emission, at any given pressure; said valve being automatically closed by said spring when the latter is not counter.- balanced by the iiuid pressure in said air chamber.

5. In an oil burner, the combination with a 'tubular 'casing having an axial tubular member with an oil chamber in said tubulaiiuember, an air chamber surrounding said tubular member, an oil inlet ccmmunicating l with said oil chamber, and an air inlet communicating with said air chamber: of an oil nozzle at the inner end ot' said oil chamber, having an internal valve seat; a discharge nozzle at the inner end of said air chamber,

in concentric relation with said oil nozzle; a f

nozzle axiallyy adjustable in said air chamber between said oil nozzle and discharge nozzle, having an 1nternal screw thread at its outer end: an annular nozzlernut in en-' gagcment with said screw thread, mounted lo rotate, without axial movement, on Said tubular member and having a.. clutch at its outer end; a. valve fitted to said seat, having a stem mounted to axially reciprocate in saidI tubular member and having a piston connectcd with its `outer end, mounted to axially reciprocate in said burner casing, and having an internal screw thread at its inner'end pitched oppositely to the first named vscrew thread; an annular piston nut engaged with.v

said piston screw thread, mounted toreciprocate on said tubular member and having a. clutch at its inner end, adaptedto engage the nozzle nut clutch aforesaid; means pre' venting rotation of said" piston nut on' said tubular member; a collar at the outer end of said tubular member; a spring encirclin said tubular member, abutting against said collar at the outer end thereof and against said piston nut, tending to shift said piston and valve inward, to close the latter 1n op- Aposition'to fluid pressure in ysaid air chain-jy with respect to said-seat,` and consequent" oil emission, at any given pressure; said lobvalve bein'gautomatically closed by-v Isaid V.spring when the latter-is not counterbaL' 'ance'd by the fluid pressure in' said air chamber'. i

-, 6. In an oil burner, the combination with a tubular casing having anaxial tubular member' with an oil chamber in said tubular member, '.a'n air chamber surroundingsaid l 1,169,091l i tubular member, an oil inlet communicatingv with ysaid 011 chamber, and anair 1nlet`com` l' 30 stem mounted tofaxially reciprocate in said tubular; member and having a piston connected with its outer end, mounted to axially reciprocate in said'burner casing, and having a screwthread at its :inner e'nd';a piston nut engaged. with said'piston screw thread, having a. :clutch at its inner end, adapted to 'engage the nozzle clutch aforesaid; and a spring tending to shift said piston and valve inward, to close the 'latter in opposition to o fluid pressure in said air chamber; whereby,

said"piston is automatically shifted, with said valve, relatively to 'said valve seat, to 'varyfthe volume of oil being emitted, inac- 1 cordance with the fluid pressure in said air chamber, but is manually adjustable to vary the position of Said-"val\'e lwith 4respect, to said seat, and consequent oil emission, at any given pressure; saidv'alve being automatilcally closed by said spring when the latter is not conn'terbalanced by 'they fluid pressure inA said air cliambcri v 4 7, ln' an oil burner, the combinationwith atubular casingdiaving an axial tubular member with an oil chamber in said tubular 20 municating with said air chamber; ofa'n oil `by it may be axiall 'adjusted including a clutch; a'valve Afitte to said seat, having a stem mountedto axially'reeiprocate in said tubular member and having a piston con- Inected with its outer end; a clutch at the inner end of saidfpiston-adapted to engage said nozzle clutch'ya'nd a spring tending to shift 'said piston-and valve inward, to closeA the latter in opposition to fluid said air chamber; whereby, -sai ressure inl piston is automaticall shifted, with said valve, relai.

tively to 'sai valve seat, to vary the volumel of oil being emitted,'in laccordance with the fluid pressure in said air chamber; said valve being automatically closedby said spring when the latter is not counterbalancediby the fluid ressure in said airchamber. 8. n an oilburner, thel combination with a casing havingiajtubula'r member with an oil chamber in said tubular member, van air .chamber surrounding said tubular member, an oil inlet communicating' with saidoil chamber, and an a'ir inlet communicating with said 'K air chamber; of an oil nozzle at the inner end'of said 'oil chamber, having a valve seat; a discharge nozzle at vthe inner end. of` 'said "air "rcl1'amber; a nozzle axially adjustable in 'said air chamber between said oil"nozzl`e" and discharge nozzle, havingv means whereby it may "be laxially adjusted; a valve fitted to said seat, having a stem mounted to'axially reciprocate in said tubular member Iand having a pistbn connected with its outer end; and a spring tending toshift said'piston and valve in# ward, to close the latter'in opposition to fluid pressure in'said air chamber; whereby, said piston is automatically"shifted, with said i valve, relatively to'said valve seat, to vary the volume ofoil being emitted, in accord ance with the rfluid pressure in .said .air

i.hamber; said valve being automatically member, lanairV chambersurroum'ling saidl having an internal valve seat; a discharge -nozzle at the inner end of said air cliainl'ier, in concentric relation with saul'oilnozz e: a nozzle axially adpistable in said air clian'ibei' between said oil nozzle and discharge nozzle, having means at its outer cnil wht-rcclosed by said `spring when the latter is not,

counterbalanced by said air' chamber.

5). In an oil burner, the combination with a casing having a tubular'mei'iber with an oil chamber in said tubular member, an air i-.hainbcr surrounding said tlibular member,

an oil inlet.communicatingwith said oil chamber, and` anair inlet con'imunicating with said air chamber; ofanoil nozzle at the inner end Iof said voil chamber, having a valve seat; av discharge nozzle at the inner v end of said air chamber; a nozzle in said air chamber between said oil' nozzle and di scharge nozzle, di'stermin'ing the angle of sprayl'roin saidl ilisf:ha'i";{e nozzle; a valve fitted to said seat, having ay stein mounted t0 axially reciprocate in said tubular member and having"V a piston"connected witlr its outer end; and a lspring tending to shift said piston and valve inward, to close the latter in opposition to fluid pressurefin saidv aill chamber; whereby, said piston is alitothe' fluid pressure in 4 member, ,an air chamber surrounding said tubular member, an oil inlet communicating With said oil chamber, and an air inlet coin-r municating with lsaid air chamber; of an oil nczzlealtgthe inner end of said oil chamber, having* an internal valve sea-t; an axially adj ustableiilischarge nozzle at the inner end vof said'air chamber, in concentric relation with ysaid oil nozzle; a valve tted to said seat having a tin tted to reci recate in Aand clean said oil nozzlmand a stem mounted to axially reciprocate in said tubular member and having a piston rigidly connected with v its outer end, mounted -to axially reciprocate in said burner casing, and having an i111 ternal right hand screw thread at its inner end; an annular piston nut engaged withsaid pistoiscrevv thread, mounted to reciprocate on-fsid tubular member; means preventing rotation of said piston nut on said tubular member; a collar at the outer endof said tubular member; a spring encircling said tubular member, abutting against said'.

collar at the outer end thereof and against said piston nut, tending to shift said piston and4 valve inward, to close the latter in opposition to iluid pressure-in said air cham ber; whereby, said piston is automatically emission, at any given pressure; said valve shifted, with said Aval-vdrelatively to said valve seat, to vary the volume of oil being emitted, in accordance with the Huid pressure in said air chamber, but is nianualy adjustable to vary the position of said valve with respect to said seat, and consequent oil being automatically closed vby said spring when the latter is not. counterbalanced by the iiuid'pres'sure in said air chamber.

1l. In a'n oil bu'rner, the combination with a tubular casing having an axial tubular member with an oil chamber in said tubular member, an air chamber surrounding said tubular member, an oil inlet communicating with said oil chamber, and an air inlet communicating with said air chamber; of an oil ,nozzle at the inner end of said oil chamber,

having an internal valve seat; an axially adjustable discharge nozzle at the inner end of said air chamber, in concentric relation with said oil nozzle; a valve fitted to said seat, having a stem mounted to axially reciprocate in said tubular member and having a piston connected With its outer end, mounted to axially reciprocate in said burner casing, and having an internal screw thread at its ing automatically closedby said spring` inner end; an annular piston nut engaged u'ith said piston screw thread, mounted to reciprocate on said tubular member; means preventing rotation of said piston nut onsaid tubular ineinberg'a collar at the outer end of saidtubular member; a spring encircling said tubular member, abutting againstv 'said collar at the outer end thereof and against said piston nut, tending to shift said piston andvalve inward,`to close vthe latter vin opposition to iiuid pressure in said air chamber; whereby, said piston is automatically shifted, with said valve, relatively tosaid. valve seat, to vary the volume of oil being emitted, in. accordance With the iiuid pressure in' said air chamber, but is manually adjustable to vary the position of said l valve withrespect to "said seat, Aand conse-` I quent oil emissi'omat any given pressure;

said valve being automatically closed by said spring when the latter is not counterbalnced by the fluid pressure in said air chamer. l

12;. In an oil burner, the combination with `a tubular casing having an 'axial tubular member with an oil chamber in said tubular tubularv member, an oil inlet communicating with said .oil chamber, and an air inlet communicating with said air chamber; of an oil nozzle at the inner end of said oil chamber,

having an internal valve seat; al discharge nozzle at the inner end of said air chamber,

yin concentric relationwith Said oil nozzle;

a valve fitted to said seat, having a stem mounted to axially reciprocate in said ,tubuf lar member and having a piston connected with its outer end, mounted to axially reciprocate in said 'burner casing, and having an internal screw thread at its inner` end; Van annular piston nut engaged with said piston screv thread, mounted to reciprocate on said tubular member; means .preventing rotation of said piston nut on said tubular member; acollar at the-outer. endA of said -tubular member; a spring encircling said tubular member, abutting against said collar at-the outer endthereoand against said piston nut, tendinglto shift'aid piston and valve inward, to close the latter in opposi-A tion to iluid pressure in said air chamber:

whereby, said piston is automatically shift:

ed, with said valve, relatively ,to said valve seat, to vary the volume of oil being emitted,

`in accordance with `the uid pressure in said air chamber, but is manually adjustable to vary the position of said valve with respect to said seat,`and consequent oil emission, at any` given pressure; said valve'being automatically closed bysaid spring'when the latter is not counterbalanced bythe fluid pressure in said air chamber. I' .f

13. In an oil burner, the combination with a tubular casing having an axial tubular member with an oil chamber in said tubular memmemben an air chambersurrounding vlsaid 515 pistdn's'crewgthread 'arranged tohold said` balanced-by 'ggfxsaid arr chamber'.

'member,anoilinletcommunicatingwith said a valvefitted4 to saidv seat, having a.' Stem b er,a n air chamber-"surrounding saidtubular ynozzle attheinnerend of said; air chamber;

l f oil chamber, and an air inlet communicating mounted to 'axially reciprocate insaidtubu-4 z `with sa i dfair chamber; of van oil-'nozzle at #lar member` andhaving a piston connected the inner endof said oil chamber, having an,l wwith its outer end; and `a spring"I tending internal Vvalve seat ;a .discharge nozzle at the "to shift said" piston and valve inward, to "inner end ofysaid air chamber, 'in concentric I close. theflatter'l in "opposition` to fluid4 presrelation with'said' oil nozzle; a valve ,fitted sure in said air chamber; whereby, said pisto said seat, fhaving a vstem mounted to*A ton is automaticallyshifted', withsaidvalve,

1 "i0 'axially reclprocate in said tubular member relatively.' to" said; valve seatt', vary^the and having a piston connected wthits outer --volume ofoil being. emitted, lin accordance y `lend, mounted to axially'reciprocate in said.. with the fluidpressure .in said lair chamber; burnerc'asing, and havmg alscrewthread at said valve` 'bemg automaticallyy closed by its inner end; apisto'n' nut engaged with Said 's'aidspring when theflatter is not counterthe duid.. pressure," in said air f pist-'Qn'iimixia1-1yia iusted' position; and a chamber.' l

"spring tending to"shi -ft`said piston and valve'y svaid"v a 1v relatively to; saidA valve Seat, te ber,` an oilinlet'l communicating with 'said f* va the1volume of oil beingenutted, in ac.-y -'oil chambr; an d"an air inlet communxcatlng 4,cor anewi'th the Huid pressurein said air` withsaid air.l chamber; 'of an oil nozzle at. 4 -fj chamber, is` .manual1 'adjustable 'to varyf; the inner endfof said oil chamber',chaving a 51the'positiont o ffsaid'va vewith respect' te j-v'alve seat ;af discharge nozzleat the inner said seat', andfconsm''uentoil emission, at any :fiend vofy 2said airl chamber a valve Ifitted to gvenj .;A saih "valvebelng' ,automatisaidl seat, hav'ingfa'stem mounted to axially "16. .In anoil "burner, the' combination l inward, tfclose, the la'tter'imoppositionto 'withacasing-havinga tubular member with l'fluid' pressure insaidair chamber;whereby, -:an oi'l chamberI in said tubular member, an

"- 20' said pistomi automatically shifted, `with airchamber surrounding said tubularmemcally'cibsedbyfsaid SgngfWhen-the latter isl reciprocate relatively to said" tubular memf" not 4counterbalarmed yg'the fluidpressure in Y y outerend; anda` spring" tending to shift .ber and"having a lpiston connectedfwith its with a tubular casing havin an aiiial ^tubulatter in opposition to uid pressure in said ing; said"tubularI member, an foil inlet com'- v tosaid valve'fseat; to vary the volume of oil .chamberjof anoily nozzle at ,the inner end4 ying'autu'naticall closed by saidl spring 'v f"s`aid1 oil fchambe'r, having aninternal ywhen-the latter 1s notr vcounterbalanced'by 401 valveseat; a"discharge nozzle at'the inner v;-.tl 1 e 'Huid pressure in said-airchambenf end of said air chamber, in 'concentric ,rela-l i; 17. vInanoil burner, the combination with 1 tion with said /oil nozzle; ,a valveitted to ia casinghavinglan'oil inlet and ana-irinlet; '-'SdetQ haVI'lg'/Smndlmtd to., axially fof `aj discharge vnozzle-in communication l 15j-having a piston connectedf'with v'its outer' munication with said oil inlet; a Vvalve'in Vend;'.and va"springtending to `Shift said'pis'l said oilj n0zzle;means whereby said'valve tena-nd valve inward,'to close the latter inmmay beaxially. shifted to cont'rbl 'flow' of opposition vto 'fluid pressure in said `air oil through said nozzle, includinga piston chamber; whereby,` 's'a1clp'isto'n` is automati-A connected with said valve and *exposed to` 'cally shifted, lwith Said, valve,-y relatively to fluid pressure in said casing'rtending to shift v"said"valve seatjto varylthe .velumeu'ofoil it outwardJ and a spring tending toshift being 7emltted," 1n accordance with the lfluid 'said valve inward; andmeans whereby said muhicatlingwitb'Sd. eil chamber, yfnd f en bei-ng emitted,v in accordance with the' iiuid -a'rr' 1n1et communlcatlng .with said lair pressure `1n said air chamber; said valve.' be-l wrecprzocatefin Said tubular member and rwithisaid air inletyan oilnozzle in corn-`y l "pressure'insaidairrchambr; said "valvcbel -`valve maybe axially shifted v with respectv to "ing-'fautomatically 'closed by` saidf spring-'gsaid piston.

whentheflatter'fis "not coimtcrbalancedg by 1,.'1-18l4g1n-an oil burner, the combination"with themfiuid pressure Vin said'aincllaiilberly n v l i lin anff'oil burnfe'r,y the" combination lffllct; yof Ia discharge nozzle in communication @easihg having fait'uvbular frr'lemben ',withsaid fair' inlet; an oil nozzle' incoin- Ian fir Telan'ilierfsurroundingsafl tubusaid oil nozzle,havingf exteriorto saidgcas lar member, a'noll lnletcommunicatjng with lang', means whereby-1Y saidvalve may' lbe Y said o il chamber, lar'danar inlet communi-I y f 'turnedv; a tip'A carried .by rsa-id valve., l ar-` f eating zhavngan-iinteral valve seat; a discharge with said valve and exposed to Huid presthe inner end bf said oil .cl1amber, nozzleto clcanthefla'ttcn; a piston.connected-- mesma sul@ in Sam casing tending to shift it outward; and a spring tending to shift saf vahe i11\\'z.1 wheeby, sati valva is normuy held open by ad pessue in Said cnSl'lg bui said vgrllve may he manually shifted i@ clean zd oil nozze.

In esmony whereof, have hereunto Sqned my :mme at Philadelphia`5 Pennsy- Vilma, thls seventh day of March, 1913.

` WILLIAM MELAS.

Witnesses ARTHUR E, PAIGE, DMU; TOWXSEND. 

